Overhead Door 3 Button Garage Door Opener Remote - CodeDodger&reg; 2 O3T Overhead Door Remote Opener Transmitter Garage Door Single Transmitter Clicker Button remote control CodeDodger Garage Door Remote Model OCDT-2 Three button Remote control transmitter 12v battery, Visor clip and Instructions Included. Designed to communicate with 315 or the 390 frequency, Can be programmed to operate any CodeDodger enabled garage door opener. CodeDodger 2 Access Security System